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(ET) Ethiopian Airlines 4099 On-Time Performance Rating

Date Range:

01-Apr-2026 to 31-May-2026

(BSB) Brasilia International Airport

Brasilia, DF, BR

(GRU) Sao Paulo-Guarulhos International Airport

Sao Paulo, SP, BR

On-Time Performance Chart

(using rounded numbers)
On-Time
51
86%
Late
5
8%
Very Late
1
2%
Excessive
2
3%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
59
Total Delays ( > 1 min )
19
Codeshares
59
Average Delay (min.)
15.68421052631579
Standard Deviation
17.8
Min
0
Max
59

ET 4099 On-Time Performance Details

Overall Rating
4.5 of 5
Good
Percentage On-Time 86%
Average Delay Time 15.68421052631579 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 4.5 shows that this flight has on-time performance characteristics better than 89% of all other flights in the FlightStats database.
On-Time Performance Rating
4.6 of 5
Very Good
Percentage On-Time 86%
This flight has an on-time performance of 86%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 92% of other flights.
Delay Performance
4.4 of 5
Good
Average Delay Time 15.68421052631579 min
This flight has an average delay of 15.68421052631579 minutes with a standard deviation of 17.8 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 88% of other flights.

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